Gain clamping in double-pass L-band EDFA using a broadband FBG
A highly efficient gain-clamped L-band EDFA with improved noise figure characteristic is demonstrated by simply adding a broadband C-band FBG in double-pass system. The combination of the FBG and optical circulator has created laser in the cavity for gain clamping. By adjusting the power, combinatio...
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| Format: | Article |
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Indian Academy of Sciences
2004
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| _version_ | 1796960722099372032 |
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| author | Harun, Sulaiman Wadi Ahmad, Harith |
| author_facet | Harun, Sulaiman Wadi Ahmad, Harith |
| author_sort | Harun, Sulaiman Wadi |
| collection | UM |
| description | A highly efficient gain-clamped L-band EDFA with improved noise figure characteristic is demonstrated by simply adding a broadband C-band FBG in double-pass system. The combination of the FBG and optical circulator has created laser in the cavity for gain clamping. By adjusting the power, combination of pumps 1 and 2, the clamped gain level can be controlled. The amplifier gain is clamped at 28.1 dB from -40 to -25 dBm with a gain variation of less than 0.5 dB by setting the pumps 1 and 2 at 59.5 and 50.6 mW, respectively. The gain is also flat from 1574 nm to 1604 nm with a gain variation of less than 3 dB. The corresponding noise figure varies from 5.6 to 7.6 dB, which is 0.8 to 2.6 dB less than those of unclamped amplifier. |
| first_indexed | 2024-03-06T05:48:54Z |
| format | Article |
| id | um.eprints-19646 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:48:54Z |
| publishDate | 2004 |
| publisher | Indian Academy of Sciences |
| record_format | dspace |
| spelling | um.eprints-196462018-10-11T08:23:15Z http://eprints.um.edu.my/19646/ Gain clamping in double-pass L-band EDFA using a broadband FBG Harun, Sulaiman Wadi Ahmad, Harith Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering A highly efficient gain-clamped L-band EDFA with improved noise figure characteristic is demonstrated by simply adding a broadband C-band FBG in double-pass system. The combination of the FBG and optical circulator has created laser in the cavity for gain clamping. By adjusting the power, combination of pumps 1 and 2, the clamped gain level can be controlled. The amplifier gain is clamped at 28.1 dB from -40 to -25 dBm with a gain variation of less than 0.5 dB by setting the pumps 1 and 2 at 59.5 and 50.6 mW, respectively. The gain is also flat from 1574 nm to 1604 nm with a gain variation of less than 3 dB. The corresponding noise figure varies from 5.6 to 7.6 dB, which is 0.8 to 2.6 dB less than those of unclamped amplifier. Indian Academy of Sciences 2004 Article PeerReviewed Harun, Sulaiman Wadi and Ahmad, Harith (2004) Gain clamping in double-pass L-band EDFA using a broadband FBG. Pramana, 62 (4). pp. 893-897. ISSN 0304-4289, DOI https://doi.org/10.1007/BF02706137 <https://doi.org/10.1007/BF02706137>. http://dx.doi.org/10.1007/BF02706137 doi:10.1007/BF02706137 |
| spellingShingle | Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering Harun, Sulaiman Wadi Ahmad, Harith Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title | Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title_full | Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title_fullStr | Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title_full_unstemmed | Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title_short | Gain clamping in double-pass L-band EDFA using a broadband FBG |
| title_sort | gain clamping in double pass l band edfa using a broadband fbg |
| topic | Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering |
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